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context_tracking: Move guest exit context tracking to separate helpers 

Provide separate context tracking helpers for guest exit, the standalone
helpers will be called separately by KVM x86 in later patches to fix
tick-based accounting.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Co-developed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210505002735.1684165-2-seanjc@google.com
This commit is contained in:
Wanpeng Li 2021-05-04 17:27:28 -07:00 committed by Thomas Gleixner
parent a217a6593c
commit 866a6dadbb
1 changed files with 8 additions and 1 deletions
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9
include/linux/context_tracking.h
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@ -131,10 +131,15 @@ static __always_inline void guest_enter_irqoff(void)
}
}
static __always_inline void guest_exit_irqoff(void)
static __always_inline void context_tracking_guest_exit(void)
{
if (context_tracking_enabled())
__context_tracking_exit(CONTEXT_GUEST);
}
static __always_inline void guest_exit_irqoff(void)
{
context_tracking_guest_exit();
instrumentation_begin();
if (vtime_accounting_enabled_this_cpu())
@ -159,6 +164,8 @@ static __always_inline void guest_enter_irqoff(void)
instrumentation_end();
}
static __always_inline void context_tracking_guest_exit(void) { }
static __always_inline void guest_exit_irqoff(void)
{
instrumentation_begin();